阅读说明：本技术 种植体、种植装置及种植牙 (Implant, implant device and implant tooth ) 是由 周俊 常林 宾士友 于 2020-06-30 设计创作，主要内容包括：本发明涉及口腔医学种植牙技术领域,尤其是涉及一种种植体、种植装置及种植牙。该种植体为柱状结构,且柱状结构上开设有沿其自身轴向延伸的安装孔,安装孔具有内螺纹,且内螺纹包括第一螺纹部和第二螺纹部,第一螺纹部靠近安装孔的孔底,第二螺纹部远离安装孔的孔底；由安装孔的孔口向安装孔的孔底方向,第二螺纹部的内螺纹牙顶与安装孔的轴线之间的距离逐渐减小。该种植装置包括基台、中央螺丝以及所述的种植体；基台具有沿其自身轴向延伸的预装通孔；中央螺丝穿过预装通孔,以与内螺纹相配合连接,用于将基台与种植体固定连接。该种植牙包括牙冠及如所述的种植装置；牙冠与种植装置相连接。本发明有利于避免中央螺丝松动或断裂的情况发生。(The invention relates to the technical field of dental medical dental implants, in particular to an implant, an implanting device and a dental implant. The implant is of a columnar structure, a mounting hole extending along the axial direction of the implant is formed in the columnar structure, the mounting hole is provided with an internal thread, the internal thread comprises a first thread part and a second thread part, the first thread part is close to the hole bottom of the mounting hole, and the second thread part is far away from the hole bottom of the mounting hole; and the distance between the crest of the internal thread of the second thread part and the axis of the mounting hole is gradually reduced from the hole opening of the mounting hole to the hole bottom direction of the mounting hole. The planting device comprises a base station, a central screw and the planting body; the abutment is provided with a pre-installation through hole extending along the axial direction of the abutment; the central screw penetrates through the preassembly through hole to be matched and connected with the internal thread and is used for fixedly connecting the abutment with the implant. The dental implant comprises a dental crown and the implant device; the crown is connected with the implanting device. The invention is beneficial to avoiding the situation that the central screw is loosened or broken.)

1. An implant is characterized in that the implant is of a columnar structure, a mounting hole extending along the axial direction of the implant is formed in the columnar structure, the mounting hole is provided with an internal thread, the internal thread comprises a first thread part and a second thread part, the first thread part is close to the hole bottom of the mounting hole, and the second thread part is far away from the hole bottom of the mounting hole; and the distance between the crest of the internal thread of the second threaded part and the axis of the mounting hole is gradually reduced from the hole opening of the mounting hole to the hole bottom direction of the mounting hole.

2. The implant of claim 1, wherein the crest of the internal thread of the second threaded portion is pointed;

or the internal thread crest of the second thread part is planar, and the distance between the planar internal thread crest and the axis of the mounting hole is gradually reduced from the orifice of the mounting hole to the hole bottom direction of the mounting hole.

3. The implant of claim 1 or 2, wherein in an axial cross section of the cylindrical structure, from the opening of the mounting hole to the bottom of the mounting hole, a connecting line between the thread crests of the single-sided internal thread of the second threaded part forms an inclined line, and the inclined line forms an included angle of 15-20 degrees with the axis of the mounting hole.

4. The implant of claim 1 or 2, wherein the columnar structure is further provided with a plug hole extending along the axial direction of the columnar structure, the plug hole is communicated with the mounting hole, and the mounting hole is positioned at the bottom of the plug hole.

5. The implant of claim 4, wherein the aperture of the mounting hole has a diameter smaller than a diameter of a bottom of the socket hole, and the bottom of the socket hole has an annular groove with an inner ring having a diameter larger than the diameter of the aperture of the mounting hole.

6. The implant of claim 1 or 2, wherein at least a surface of the second threaded portion in the mounting hole has a diamond-like coating or a tungsten carbide coating.

7. The implant of claim 1 or 2, wherein a twist length of the first threaded portion is greater than a twist length of the second threaded portion.

8. An implant device comprising an abutment, a central screw, and the implant of any one of claims 1-7; the abutment is provided with a pre-installation through hole extending along the axial direction of the abutment; the central screw penetrates through the preassembly through hole to be matched and connected with the internal thread, and is used for fixedly connecting the abutment with the implant.

9. The planting device of claim 8, wherein the pre-assembly through hole is a stepped through hole, and an axis of the stepped through hole is not perpendicular to a stepped surface of the stepped through hole, and an axis of the central screw is not perpendicular to a face of the head of the central screw that faces its own tail, such that the face of the head of the central screw that faces its own tail can apply a non-axial force to the stepped surface of the stepped through hole;

or/and one surface of the head of the central screw, which faces to the tail of the head of the central screw, is provided with a diamond-like carbon coating or a tungsten carbide coating;

or/and the step surface of the step through hole is provided with a diamond-like carbon coating or a tungsten carbide coating.

10. An implant comprising a crown and an implant device according to claim 8 or 9; the crown is connected with the implanting device.

Technical Field

The invention relates to the technical field of dental medical dental implants, in particular to an implant, an implanting device and a dental implant.

Background

After the implant is implanted and healed in the first stage, the implant and the abutment are connected through the pre-tightening stress of the central screw in the second stage of operation, and when the implant and the dental crown supported on the abutment are subjected to millions of times of circulating occlusal force, the abutment and the implant can deform and are transmitted to the central screw. Uneven load distribution can lead to the loosening or the breakage of a central screw for connecting the implant, further cause micro-motion micro-gaps between the implant and a base platform, and the accumulation of a large amount of bacterial plaque leads to the absorption of a large amount of peripheral bones around the implant, thereby failing the implantation operation.

Disclosure of Invention

The invention aims to provide an implant, an implant device and a dental implant, and aims to solve the technical problem that a central screw connected with the implant is loosened or broken due to uneven load distribution in the prior art.

The invention provides an implant which is of a columnar structure, wherein a mounting hole extending along the axial direction of the columnar structure is formed in the columnar structure, the mounting hole is provided with an internal thread, the internal thread comprises a first thread part and a second thread part, the first thread part is close to the hole bottom of the mounting hole, and the second thread part is far away from the hole bottom of the mounting hole; and the distance between the crest of the internal thread of the second threaded part and the axis of the mounting hole is gradually reduced from the hole opening of the mounting hole to the hole bottom direction of the mounting hole.

Further, the crest of the internal thread of the second thread part is pointed;

or the internal thread crest of the second thread part is planar, and the distance between the planar internal thread crest and the axis of the mounting hole is gradually reduced from the orifice of the mounting hole to the hole bottom direction of the mounting hole.

Furthermore, on the axial cross section of the columnar structure, from the orifice of the mounting hole to the hole bottom direction of the mounting hole, a connecting line between the thread crests of the internal thread on one side of the second thread part forms an inclined line, and an included angle between the inclined line and the axis of the mounting hole is 15-20 degrees.

Furthermore, the columnar structure is further provided with an inserting hole extending along the axial direction of the columnar structure, the inserting hole is communicated with the mounting hole, and the mounting hole is positioned at the hole bottom of the inserting hole.

Further, the diameter of the hole opening of the mounting hole is smaller than the diameter of the hole bottom of the inserting hole, the hole bottom of the inserting hole is provided with an annular groove, and the diameter of the inner ring of the annular groove is larger than the diameter of the hole opening of the mounting hole.

Further, in the mounting hole, at least a surface of the second threaded portion has a diamond-like carbon coating or a tungsten carbide coating.

Further, the screwing length of the first thread part is larger than that of the second thread part.

The invention also provides a planting device, which comprises a base station, a central screw and the planting body; the abutment is provided with a pre-installation through hole extending along the axial direction of the abutment; the central screw penetrates through the preassembly through hole to be matched and connected with the internal thread, and is used for fixedly connecting the abutment with the implant.

Furthermore, the preassembly through hole is a stepped through hole, the axis of the stepped through hole is not perpendicular to the stepped surface of the stepped through hole, and the axis of the central screw is not perpendicular to the surface of the head of the central screw, which faces the tail of the central screw, so that the surface of the head of the central screw, which faces the tail of the central screw, can apply non-axial force to the stepped surface of the stepped through hole;

or/and one surface of the head of the central screw, which faces to the tail of the head of the central screw, is provided with a diamond-like carbon coating or a tungsten carbide coating;

or/and the step surface of the step through hole is provided with a diamond-like carbon coating or a tungsten carbide coating.

The invention also provides a dental implant, which comprises a dental crown and the implant device; the crown is connected with the implanting device.

Compared with the prior art, the invention has the following beneficial effects:

the implant provided by the invention is of a columnar structure, the columnar structure is provided with a mounting hole extending along the axial direction of the columnar structure, the mounting hole is provided with internal threads, the internal threads comprise a first thread part and a second thread part, the first thread part is close to the hole bottom of the mounting hole, and the second thread part is far away from the hole bottom of the mounting hole; and the distance between the crest of the internal thread of the second thread part and the axis of the mounting hole is gradually reduced from the hole opening of the mounting hole to the hole bottom direction of the mounting hole. The distance between the inner thread crest of the second thread part and the axis of the mounting hole is gradually reduced, so that the second thread part is easy to deform when the second thread part receives the occlusion force, and the load can be transferred to the first thread part positioned at the lower part, so that the whole stress of the inner thread tends to be uniform, and the situation that a central screw is loosened or broken is favorably avoided.

The invention also provides an implanting device, which comprises a base station, a central screw and the implant body; the abutment is provided with a pre-installation through hole extending along the axial direction of the abutment; the central screw penetrates through the preassembly through hole to be matched and connected with the internal thread and is used for fixedly connecting the abutment with the implant. Based on the analysis, the planting device is beneficial to avoiding the situation that the central screw is loosened or broken.

The invention also provides a dental implant, which comprises a dental crown and the implant device; the crown is connected with the implanting device. Based on the analysis, the dental implant is beneficial to avoiding the situation that the central screw is loosened or broken.

It is to be understood that both the foregoing general description and the following detailed description are for purposes of illustration and description and are not necessarily restrictive of the disclosure. The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate the subject matter of the disclosure. Together, the description and drawings serve to explain the principles of the disclosure.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural view of an implant according to an embodiment of the present invention;

fig. 2 is another schematic view of an implant according to an embodiment of the present invention;

fig. 3 is a structural view illustrating a modification of an implant according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a planting device provided by an embodiment of the invention;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;

FIG. 6 is a schematic view of a base station of an embodiment of the present invention mated with a central screw;

FIG. 7 is a diagram illustrating a submount in an embodiment of the invention;

FIG. 8 is a schematic view of a central screw according to an embodiment of the present invention.

Icon:

100-implant; 101-a first threaded portion; 102-a second threaded portion;

103-variable diameter hole parts; 104-a constant diameter hole part; 201-annular groove;

301-a base station; 302-central screw; 303-preassemble the through holes; 304-head.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.

All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.